Shock waves in colliding Fermi gases at finite temperature
arXiv:1810.03507 · doi:10.1103/PhysRevA.98.053622
Abstract
We study the formation and the dynamics of a shock wave originating from the collision between two ultracold clouds of strongly interacting fermions as observed at a lower temperature in an experiment by Joseph et al. [Phys. Rev. Lett. 106, 150401 (2011)]. We use the Boltzmann equation within the test-particle method to describe the evolution of the system in the normal phase. We also show a direct comparison with the hydrodynamic approach and insist on the necessity of including a shear viscosity and a thermal conductivity term in the equations to prevent unphysical behavior from taking place.
8 pages, 5 figures; v2: discussion and references added
References in corpus (8)
- Universal Quantum Viscosity in a Unitary Fermi Gas
- Shear viscosity and damping for a Fermi gas in the unitarity limit
- Collective oscillations of a Fermi gas in the unitarity limit: Temperature effects and the role of pair correlations
- Dissipative fluid dynamics for the dilute Fermi gas at unitarity: Anisotropic fluid dynamics
- Shock waves in strongly interacting Fermi gas from time-dependent density functional calculations
- Collective modes of trapped Fermi gases with in-medium interaction
- Numerical solution of the Boltzmann equation for trapped Fermi gases with in-medium effects
- Dynamics of shock waves in a superfluid unitary Fermi gas